CN216531661U

CN216531661U - Data acquisition stick and dc-to-ac converter

Info

Publication number: CN216531661U
Application number: CN202122737419.3U
Authority: CN
Inventors: 柯建兴; 田召宝
Original assignee: Sineng Electric Co ltd
Current assignee: Sineng Electric Co ltd
Priority date: 2021-11-09
Filing date: 2021-11-09
Publication date: 2022-05-13
Anticipated expiration: 2031-11-09

Abstract

The utility model is suitable for the technical field of data monitoring, and provides a data acquisition rod and an inverter, wherein the data acquisition rod comprises: mainboard module and with the extension module that mainboard module connects, wherein, mainboard module includes power source, the communication interface of a plurality of different grade types, net gape, USB interface and connects the extension interface of a plurality of different grade types of extension module, mainboard module is respectively through a plurality of different grade types communication interface, net gape, USB interface and a plurality of different grade types the extension interface carries out data acquisition. The embodiment of the utility model can realize the effects of diversified communication modes and flexible configuration.

Description

Data acquisition stick and dc-to-ac converter

Technical Field

The utility model belongs to the technical field of data monitoring, and particularly relates to a data acquisition rod and an inverter.

Background

At present, remote monitoring of photovoltaic inverters and industrial equipment is an important link of automatic management of the equipment. After decades of development, the whole industry is gradually upgraded from an initial wired mode to a wireless mode, and is improved from a low-speed serial port mode to a high-speed network port mode, and the implementation method is also changed from a single interface to an optional scheme. However, in the existing monitoring technology, the MCU (Microcontroller Unit) +4G communication module is used, wherein the MCU is connected to a device to be monitored and to the 4G communication module at one side, and data transmission is realized through a serial port. The MCU utilizes the RS485 serial port to receive and process the data of the monitored equipment, and meanwhile, the MCU is communicated with the 4G module to send the acquired data out through the 4G network, so that the requirement of wireless remote monitoring is met. Therefore, in the prior art, wireless monitoring is realized through a single 4G network, the serial port communication speed is limited, and secondly, when more demands are met, flexible configuration is difficult to realize through the MCU +4G mode.

SUMMERY OF THE UTILITY MODEL

The utility model provides a data acquisition rod, and aims to solve the problems that in the prior art, a network is single in implementation mode and various requirements are difficult to flexibly configure.

The utility model is thus achieved, a data acquisition wand comprising: a mainboard module and an expansion module connected with the mainboard module, wherein,

the mainboard module includes power source, the communication interface of a plurality of different grade types, net gape, USB interface and connects the expansion interface of a plurality of different grade types of expansion module, the mainboard module is respectively through a plurality of different grade types communication interface, net gape, USB interface and a plurality of different grade types expansion interface carries out data acquisition.

Furthermore, the plurality of different types of communication interfaces of the mainboard module include a UART interface and a CAN interface, and the UART interface and the CAN interface are respectively connected to the monitoring device to be tested.

Furthermore, the plurality of different types of expansion interfaces of the motherboard module include a plurality of SCI interfaces, SPI interfaces, and I2C interfaces, and the plurality of SCI interfaces, SPI interfaces, and I2C interfaces are respectively connected to the expansion module.

Furthermore, the mainboard module further comprises a USB interface, and the collected data is stored through the USB interface or is externally connected with USB equipment.

Furthermore, the extension module comprises a 4G and Bluetooth extension module, and the 4G and Bluetooth extension module is in communication connection with the SCI interface.

Furthermore, the extension module comprises a Wifi extension module which is in communication connection with the SCI interface.

Furthermore, the expansion module comprises an SD card expansion module, and the SD card expansion module is connected with the SPI interface.

Furthermore, the expansion module comprises a temperature and humidity expansion module, and the temperature and humidity expansion module is connected with the I2C interface.

An embodiment of the present invention further provides an inverter, including the data acquisition rod according to any one of the above embodiments.

The utility model has the advantages that as the main control module is provided with a plurality of different types of communication interfaces, network ports and a plurality of different types of expansion interfaces connected with the expansion module, the detection data of the monitored equipment can be acquired through the different types of communication interfaces, and the data acquisition and the network connection can be realized through the network ports; in addition, after different types of expansion interfaces are arranged, different modes of network communication and functions of data acquisition, transmission and storage can be realized after different modules in the expansion module are connected with the main board module. Therefore, the embodiment of the utility model can realize the effects of diversified communication modes and flexible configuration.

Drawings

FIG. 1 is a schematic structural diagram of a data acquisition wand according to the present invention;

fig. 2 is a schematic structural diagram of a main control module provided in this embodiment;

fig. 3 is a schematic diagram of a possible specific structure of the expansion module provided in this embodiment;

fig. 4 is a schematic diagram of another possible specific structure of the expansion module provided in this embodiment;

fig. 5 is a schematic diagram of another possible specific structure of the expansion module provided in this embodiment;

fig. 6 is a schematic diagram of another possible specific structure of the expansion module provided in this embodiment;

the system comprises a main board module 1, a main board module 2, an expansion module 21, a 4G and Bluetooth expansion module 22, a Wifi expansion module 23, a temperature and humidity expansion module and an SD card expansion module 24.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the utility model and are not intended to limit the utility model.

In the most similar existing scheme, the monitoring technology realizes the acquisition and transmission of monitoring data through the mode of the MCU +4G communication module. However, the network communication mode is single, the serial port communication speed is limited, and when more demands are met, the MCU +4G mode is difficult to flexibly configure. According to the monitoring equipment monitoring system, the main control module is provided with a plurality of different types of communication interfaces, network ports and a plurality of different types of expansion interfaces connected with the expansion module, so that the detection data of the monitored equipment can be acquired through the different types of communication interfaces, and the data acquisition and network connection can be realized through the network ports; in addition, after different types of expansion interfaces are arranged, different modes of network communication and functions of data acquisition, transmission and storage can be realized after different modules in the expansion module are connected with the main board module. Therefore, the embodiment of the utility model can realize the effects of diversified communication modes and flexible configuration.

Example one

The embodiment provides a data acquisition stick, specifically includes: a main board module 1 and an expansion module 2 connected with the main board module 1, wherein,

the mainboard module 1 comprises a power supply interface, a plurality of different types of communication interfaces, a network port and a plurality of different types of expansion interfaces connected with the expansion module 2, and the mainboard module 1 respectively acquires data through the plurality of different types of communication interfaces, the network port and the plurality of different types of expansion interfaces.

Specifically, referring to fig. 1, the data acquisition rod provided in this embodiment includes a main board module 1 and an expansion module 2 connected to the main board module 1. The main board module 1 includes an MCU controller having a plurality of interfaces, which controls the interfaces of each circuit to collect and transmit the relevant data. The expansion module 2 can complete each independent function, and flexible configuration of the whole control system is realized. The expansion module 2 is an optional expansion module 2, and includes various modules capable of realizing independent functions, and the corresponding module can be selected for use according to requirements.

Referring to fig. 2, the power interface and the plurality of different types of communication interfaces are internal interfaces, and the expansion module 2 also includes an expansion power interface. The power supply in the internal interface may be connected to supply power to the MCU controller through the DC/DC port and to supply power to the expansion module 2 through the expansion power interface on the expansion module 2. The communication interfaces of different types can be used for collecting relevant data information of the monitored equipment, such as: voltage, current, power, electric energy and the like, as well as fault quantity, alarm quantity and the like, are prepared for remote transmission. And a plurality of communication interfaces of different types are provided, and the flexible configuration can be realized according to the actual situation.

The network port can be used for providing remote network connection and realizing high-speed communication, can also be used for collecting data on site, and can realize 10M/100Mb/s communication by adopting the network port. The MCU controller provided in this embodiment further includes a plurality of different types of expansion interfaces, for example: an interface for network connection, an interface for data transmission and acquisition, and the like. The interface on the extension module 2 can be connected with the extension interface of the corresponding type on the MCU controller according to the requirement, and the functions of data transmission and acquisition, network connection, data storage and the like can be realized.

In this implementation, because a plurality of different types of communication interfaces and network ports are arranged in the MCU controller, and a plurality of different types of expansion interfaces connected to the expansion module 2 are arranged in the MCU controller, the detection data of the monitored device can be collected through the plurality of different types of communication interfaces, and data collection and network connection can be implemented through the network ports. In addition, the MCU controller is also provided with a plurality of different types of expansion interfaces, and after different modules in the expansion module 2 are connected with the main board module 1, network communication in different modes and functions of data acquisition, transmission and storage can be realized. Therefore, the embodiment of the utility model can realize the effects of diversified communication modes and flexible configuration.

Example two

In this embodiment, with reference to fig. 2, on the basis of the first embodiment, the plurality of different types of communication interfaces of the motherboard module 1 include a UART interface and a CAN interface, and the UART interface and the CAN interface are respectively connected to the monitoring device to be tested.

Specifically, the UART (Universal Asynchronous Receiver/Transmitter) interface is disposed on the MCU controller and is a Universal Asynchronous Receiver/Transmitter. The data can be transmitted and converted between serial communication and parallel communication. Or the UART interface may also be a peripheral device integrated into the microprocessor. The UART interface is used in lower speed applications. The MCU Controller of this embodiment is further provided with a CAN (Controller Area Network) interface, which CAN be used in a relatively high-speed situation, and CAN achieve a communication of up to 5Mbps by using a CAN communication port. Therefore, by providing a plurality of communication interfaces of different types, the communication interface can be selected to be applied to the occasion with high speed or the occasion with low speed, and can be flexibly configured according to the actual situation.

EXAMPLE III

In this embodiment, on the basis of the first embodiment, the plurality of different types of expansion interfaces of the motherboard module 1 include a plurality of SCI interfaces, SPI interfaces, and I2C interfaces, and the plurality of SCI interfaces, SPI interfaces, and I2C interfaces are respectively connected to the expansion module 2.

Specifically, the sci (serial Communication interface) interface is a serial Communication interface, which is a generic term of serial Communication technology with respect to parallel Communication. In this embodiment, as shown in fig. 2, the MCU controller may further include 2 SCI interfaces (SCI1 interface and SCI2 interface), which may be used to connect to a communication module for serial interface docking, such as 4G, bluetooth, Wifi, etc., to implement wireless data acquisition; other serial port conversion equipment can also be connected.

The spi (serial Peripheral interface) interface is a synchronous serial Peripheral interface that allows the MCU controller to communicate with various Peripheral devices in a serial manner to exchange information. In this embodiment, an SPI-related device, such as an SD card, may be connected to achieve field data acquisition. And a serial port is adopted, so that the communication with the baud rate of 115200bps can be realized.

The I2C (Inter-Integrated Circuit) interface is used to connect the microcontroller and its peripheral devices, and may be connected to I2C related devices, such as a temperature and humidity sensor, to acquire and transmit data on the site where the temperature and humidity sensor is installed.

As shown in fig. 2, the MCU controller further includes a USB interface, which can be connected to a USB disk, and can store the collected data/field data via the USB interface, and can also be connected to other USB devices, so as to meet flexible monitoring requirements.

In this embodiment, set up SCI interface, SPI interface, I2C interface and USB interface on the MCU controller, can be connected with the interface that corresponds on the MCU controller according to extension module 2 option in extension module 2 to realize different functions, make it possess more alternative, satisfy more configuration demands.

Example four

In this embodiment, on the basis of the third embodiment, the extension module 2 includes a 4G and bluetooth extension module 21, and the 4G and bluetooth extension module 21 are in communication connection with an SCI interface.

Referring to fig. 3, according to the interface on the MCU controller, the option corresponding to the extension module 2 may include a 4G and a bluetooth extension module 21. Specifically, the 4G and bluetooth extension module 21 includes a bluetooth module, a 4G module, two power interfaces (DC/DC1 interface and DC/DC2 interface) and two SCI interfaces and an SC2 interface. The power supply is connected with the power supply of the internal interface through the DC/DC1 interface and the DC/DC2 interface, and the SCI1 interface and the SCI2 interface of the 4G module and the Bluetooth module are correspondingly connected with the SCI1 interface and the SCI2 interface in the MCU controller respectively. Therefore, the 4G wireless communication function and the Bluetooth communication function can be realized, and wireless data acquisition and the like can be carried out.

As a possible embodiment, referring to FIG. 4, the expansion module 2 includes a Wifi expansion module 22, the Wifi expansion module 22 includes a Wifi module, a DC/DC1 interface, and a SCI1 interface connected to SCI 2. The DC/DC1 interface is connected with a power supply, the SCI1 interface and the SCI2 interface are correspondingly connected with the SCI1 interface and the SCI2 interface in the MCU controller, and when field data acquisition is carried out, the function of field Wifi wireless communication is realized.

As a possible embodiment, referring to fig. 5, the expansion module 2 may further include a temperature and humidity expansion module 23, where the temperature and humidity expansion module 23 is connected to the I2C interface. Specifically, the temperature and humidity expansion module 23 includes a power interface DC/DC1, an I2C interface, and a temperature and humidity sensor. The temperature and humidity sensor is connected with the power supply through the power supply interface and supplies power to the temperature and humidity sensor, the I2C interface of the temperature and humidity sensor and the MCU controller is connected with the I2C interface, the temperature and humidity sensor and the MCU controller can be used for monitoring and collecting information such as temperature, humidity and time on site, and the collected data can be stored in the SD card.

As a possible embodiment, referring to fig. 6, the expansion module 2 includes an SD card expansion module 24, and the SD card expansion module 24 includes a power interface DC/DC1, an SPI interface, and an SD card. Connect the power through power interface DC/DC1 and supply power for the SD card, through the SOI interface of SPI interface connection SD card and MCU controller, when carrying out field data acquisition, realize field SD card data acquisition and storage, for example: the temperature and humidity sensor collects information such as temperature, humidity, time and the like.

EXAMPLE five

An embodiment of the present invention further provides an inverter including the data acquisition rod according to any one of the above embodiments.

The data acquisition rod arranged in the inverter mainly records the working state and the power generation condition of the inverter to effectively monitor the photovoltaic power generation system for a long time. Usually, the acquisition rod is connected with a plurality of inverters through an interface of the MCU controller, receives various information of the photovoltaic system from an inverter end, and uploads the information to a platform through a plurality of remote communication modes such as WiFi/Bluetooth/4G and the like. And different expansion interfaces are arranged on the MCU controller and can be connected with different expansion modules 2, so that more freedom in configuration is realized. The operation and maintenance work is greatly simplified, the data are ensured to be complete and not to lose breakpoint continuous transmission, remote upgrade and system debugging are supported, the operation and maintenance are easier, the problems of equipment can be timely recorded, and the troubleshooting is faster.

In the embodiment of the utility model, because the UART interface and the CAN interface are arranged in the MCU controller, the MCU controller CAN be selected to be applied to the high-speed occasion and the low-speed occasion, and CAN be flexibly configured according to the actual situation. In addition, a network port, an SCI1 interface, an SCI2 interface, an SPI interface and an I2C interface are also provided, wherein the SCI1 interface and the SCI2 interface can be connected with a 4G, Bluetooth or Wifi expansion module 22 and the like to realize wireless data acquisition, and a communication mode except a serial port is also adopted, so that the communication speed is improved, and the application occasions are enlarged. The SPI interface can be connected with the SD card expansion module 24 to realize field data acquisition. The I2C interface can be connected with a temperature and humidity sensor (temperature and humidity extension module 23) to realize the data acquisition and transmission on the site where the temperature and humidity sensor is arranged. The USB interface is connected with a USB flash disk, collected data/field data can be stored through the USB interface, and other USB equipment can be connected, so that flexible monitoring requirements are met. Therefore, the data acquisition rod can realize network communication in different modes and functions of data acquisition, transmission and storage, and achieves the effects of diversified communication modes and flexible configuration.

The present invention is not limited to the above preferred embodiments, and any modifications, equivalent substitutions and improvements made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A data acquisition wand, comprising: a mainboard module and an expansion module connected with the mainboard module, wherein,

the mainboard module comprises a power supply interface, a plurality of different types of communication interfaces, a network port and a plurality of different types of expansion interfaces connected with the expansion module, and the mainboard module respectively carries out data acquisition through the plurality of different types of communication interfaces, the network port and the plurality of different types of expansion interfaces.

2. The data acquisition wand of claim 1, wherein the plurality of different types of communication interfaces of the motherboard module include a UART interface and a CAN interface, the UART interface and the CAN interface being connected to a monitoring device to be tested, respectively.

3. The data acquisition wand of claim 1, wherein the plurality of different types of expansion interfaces of the main board module comprise a plurality of SCI interfaces, SPI interfaces, and I2C interfaces, and the plurality of SCI interfaces, SPI interfaces, and I2C interfaces are respectively connected to the expansion module.

4. The data acquisition wand of claim 1, wherein the main board module further comprises a USB interface, and the acquired data is stored through the USB interface or is externally connected with a USB device.

5. The data acquisition wand of claim 3, wherein the extension module comprises a 4G and Bluetooth extension module, and wherein the 4G and Bluetooth extension modules are communicatively coupled to the SCI interface.

6. The data acquisition wand of claim 3, wherein the expansion module comprises a Wifi expansion module, the Wifi expansion module communicatively coupled to the SCI interface.

7. A data acquisition wand as claimed in claim 3, wherein said expansion module comprises an SD card expansion module, said SD card expansion module being connected to said SPI interface.

8. The data acquisition rod as claimed in claim 3, wherein the expansion module comprises a temperature and humidity expansion module, and the temperature and humidity expansion module is connected with the I2C interface.

9. An inverter, characterized by comprising a data acquisition bar according to any one of claims 1 to 8.